P016C
Closed Loop Air/Fuel Ratio Control At Limit - System Too Lean
P016C is an OBD-II diagnostic trouble code meaning: Closed Loop Air/Fuel Ratio Control At Limit - System Too Lean. Common causes: air leaks in the intake tract, dmrv malfunction. Estimated repair cost: $56–167.
Symptoms
- Poor engine idling
- Power Loss
- Increased fuel consumption
- Possible misfires
- Check Engine Light Is On
Causes
- Air leaks in the intake tract
- DMRV malfunction
- Weak fuel pump
- Dirty fuel injectors
- Clogged fuel filter
- Malfunction of oxygen sensors
- Problems with the EVAP system
- Vacuum leak
How to Fix
- Check the intake tract for air leaks
- Check the readings of the mass air flow sensor and MAP sensor
- Check fuel pressure
- Inspect the condition of the fuel injectors
- Check the operation of oxygen sensors
- Check the EVAP system for leaks
- Check vacuum hoses
Related codes
Error P016C by Vehicle Brand
FAQ
What does the P016C code mean?
P016C is an OBD-II diagnostic trouble code that indicates: Closed Loop Air/Fuel Ratio Control At Limit - System Too Lean
What causes a P016C error code?
The most common causes of P016C include: Air leaks in the intake tract; DMRV malfunction; Weak fuel pump; Dirty fuel injectors.
How do I fix a P016C diagnostic trouble code?
To fix P016C: Check the intake tract for air leaks. Check the readings of the mass air flow sensor and MAP sensor. Check fuel pressure. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P016C?
Limited driving only, diagnose soon
How much does it cost to fix P016C?
The estimated repair cost for P016C is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat